a1 on Nostr: Hercules-Corona Borealis Great Wall is the largest know structure in the observable ...
Published at
2025-02-19 10:19:58Event JSON
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"content": "Hercules-Corona Borealis Great Wall is the largest know structure in the observable universe spanning 10 billion light years. The observable universe is 93 billion light years in diameter. \n\nMy mind has a hard time grasping these numbers. \n\nhttps://en.wikipedia.org/wiki/Hercules%E2%80%93Corona_Borealis_Great_Wall",
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